Futures Unisex HS3 Hayden Shapes Generation Series Tri Fin Set Thruster fin set (3-Fin) Recommended for X-Small/Grom Size Surfers - 75lbs to 115lbs (34kg to 53kg) Futures Ride Number rating of 8.5 - Speed Generating For springy fluid and responsive surfing Area Specs - Side Fins and Center Fin: 13.04sq in